Thank you

Dear Master Cecil
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First and foremost, after reading your advise on doing a search on the forum to my questions, I feel that you are indeed a very generous person. Who on earth will give out their valuable knowledge to others without taken a single penny. I did a search on crystals and changing of house period and found out that in your forum/reply, you went into very detailed reply with no cost (except for the internet bills). Once again...thank you. My doubts are cleared.
However, please tell me if I were to change the wooden door of the main entrance, change 16 roof tiles (8 at 2 section), paint part of the house (front portion) and have a massive gathering (you are also invited...hee hee hee), can I consider this to be a period of 8 house? If it does not can you please tell me if NW3 house is better in period 7 or period 8?
I sometimes knock myself on the head...what if period 8 house is worst then period 7 house for us...I will be in for deep problem!!!
Sincerely,
Janice